... 1.Name: hot coil big compression spring 2.Style: alloy Steel 3.All ... automobiles- Meet with specific fatigue testing requirementsAt Lihuan Spring, we not only design, manufacture, and test ... Scope: Compression Spring, Extension spring, Torsion Spring, Battery Spring, Power spring, Coil spring, leaf spring, suspension spring, etc. 2) Main material: Carbon spring steel, alloy spring steel, Refractory ...